Self-heating sad-iron.



G. A; HUMPHREY. SELF HEATING SAD IRON. APPLICATION FILED JUNE 5, 1912.

Patented June 3, 1913.

COLUMBIA PLANOURAPH co.,wAsHmGTON. D. c.

GEORGE A. HUMPHREY, OF NEW YORK, N. Y.

SELF-HEATING SAD-IRON.

Specification of Letters Patent.

Patented June 3, 1913.

Application filed June 5, 1912, Serial No. 701,741.

To all whom it may concern Be it known that I, GEORGE A. HUM- runny, a citizen of the United States, residing in the city of New York, county of New York, State of New York, have invented certain new and useful Improvements in Self-Heating Sad-Irons, of which the following is a specification.

This invention relates to improvementsin self-heating sad irons;

The main objects of this invention are, first, to provide an improved self-heating sad iron which is very efficient,that is, one which may be quickly heated to the desired temperature and maintained at a substantially even temperature and is economical in full consumption. Second, to provide an improved self-heating sad iron in which the heat is efiectively delivered to the bottom of the iron and the bottom of the iron is evenly heated. Third, to provide in a self-heating sad iron, an improved burner which is not likely to back fire or to become inoperative through excessive heat though the iron be used continuously for a considerable period.

Further objects and objects relating to structural details will definitely appear from the detailed description to follow.

I accomplish the objects of my invention by the devices and means described in the following specification.

The invention is clearly defined and pointed out in the claims.

A structure which is a preferred embodiment of my invention is clearly illustrated in the accompanying drawing, forming a part of this specification, in which:

Figure I is a side elevation of a structure embodying the features of my invention. Fig. II is a central longitudinal section taken on a line corresponding to line 22 of Fig. III, the handle being broken away. Fig. III is a transverse section taken on a line corresponding to line 3-3 of Fig. II, the handle being broken away. FigQIV is an enlarged detail section on a line corresponding to line H of Fig. III, showing details of the connections for the top and the bottom. Fig. V is a horizontal section taken on a line corresponding to line 5-5 of Fig. II. Fig. VI is an enlarged detail section on a line corresponding to line 66 of Fig. II. Fig. VII is an inverted perspective view of the burner body 8 with the burners thereon.

In the drawing, similar reference characters refer to simllar parts throughout the several views, and the sectional views are taken looking in the direction of the little arrows at the ends of the section lines.

The body 1 of my improved sad iron is a chambered casting, the inner side of the bottom 2 provided with longitudinal corrugations 3. The side walls of the body 1 are provided with air inlet openings 4 adjacent to the bottom, the air inlet openings 4 being preferably in a plane just above the plane of the crowns of the corrugations, the bottom of the openings being substantially in the plane of the crowns of the cor rugations. The side walls have notch-like openings 5 through which the products of combustion escape. The top 6 is chambered and is adapted to fit on the side walls of the body and is remo-vably secured thereon by means of the screws 7. The tubular burner body 8 is arranged longitudinally within the top with its rear end abutting the rear end wall of the top. The burner is clamped against the under side of the top by means of the screw 9 arranged trans- 'versely therethrough, a single screw thus effectively supporting the burner body. The mixing tube 10 is arranged through the rear wall of the top to project into the burner body, the end of the tube extending well into the body so that the gas is delivered at a central point therein. The opening in the rear wall of the top is disposed so that the mixing tube is supported eccentrically of the burner body. This re moves the tube as far as possible from the tips of the burners and also provides space on the under side of the mixing tube for the passage of the gas to the burners 12. The mixing tube has air inlet openings 13 at its outer end and a valve 14 controlling the nozzle 15. The air inlet openings are grouped about the nozzle 15.

A nipple 16 adapted to receive a rubber tube or hose for connecting the burner to the gas supply is provided. The burners 12 are tubular in form and are inserted into the burner body. These burners are elongated and the tips are adjacent to the corrugated bottom so that the jets issuing therefrom are delivered against the bottom. The

burners are arranged in diverging pairs as shown in Fig. VII in order to secure an even distribution of the heat and also so that their tips may be brought well toward the air inlet openings 4:. The corrugations in the bottom increase the heating surface of the bottom and also assist in distributing the heat as the jets directed thereagainst from the burner tips are carried along or spread along the bottom by the corrugations. The diameter of the passages in the burner is relatively small in proportion to their length, that is, the length of the burners is several times that of the diameters of the passages therein. By thus forming and arranging the parts I secure a structure in which it is not necessary to provide screens to prevent back firing.

The products of combustion are led away from the burner body by the openings 5 so that the gas does not become unduly heated in the burner body.

The handle 17 is mounted on the top by means of the screws 18. A shield 19 which flares outwardly at each side of the handle deflects the hot air and gases escaping from the iron from the hand.

I have illustrated and described my improvements in detail in the form in which I have embodied the same. I am, however, aware that considerable modification or variation in structural details are possible without departing from my invent-ion. As such modifications or variations will no doubt suggest themselves to those skilled in the art to which this invention relates, I have not attempted to illustrate or describe the same herein.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In a self-heating sad iron, the combination of a chambered body having side walls provided with air openings adjacent to the bottom and notch-like air openings in their upper edges, the inner side of the bottom being longitudinally corrugated, a chambered top removably secured to said body, a tubular burner body arranged longitudinally within the top with its rear end abutting the rear wall thereof, a securing screw for said burner body arranged transversely therethrough, tube-like burners arranged on said burner body in downwardly diverging pairs and with their ends adjacent to said corrugated bottom, and a mix ing tube arranged through the rear wall of the top and projecting into the burner body to deliver at a central point therein, said mixing tube being arranged eccentrically of the tubular burner body.

2. In a self-heating said iron, the combination of a chambered body, a chambered top for said body, a tubular burner body arranged longitudinally within the top with its rear end abutting the rear wall thereof,

downwardly projecting tubular burners arranged on said burner body with thelr ends adjacent to the bottom, and a mixing tube arranged through the rear wall of the top and projecting into the burner body to de liver at a central point therein, said mixing tube being arranged eccentrically 0f the said burner body.

3. In a self-heating sad iron, the combination of a chambered body, a chambered top for said body, a tubular burner body arranged longitudinally within the top with its rear end abutting the rear wall thereof, a securing screw for said burner body ar ranged transversely therethrough, clownwardly projecting tubular burners arranged on said burner body with their ends adjacent to the bottom, and a mixing tube ar ranged through the rear wall of the top projecting into the burner body to deliver at a central point therein.

4. In a self-heating sad iron, the combination of a chambered body, a chambered top for said body, a tubular burner body arranged longitudinally within the top with its rear end abutting the rear wall thereof, downwardly projecting tubular burners arranged'on said burner body with their ends adjacent to the bottom, and a mixing tube arranged through the rear wall of the top and projecting into the burner body to deliver at a central point therein.

5. In a self-heating sad iron, the combination of a chambered body, a chambered 7 top for said body, a tubular burner arranged within the top, downwardly projecting tubular burners arranged on said body, and a mixing tube arranged eccentrically of the said burner body.

6. In a self-heating sad iron, the combination of a chambered body, a chambered top for said body, a tubular burner arranged within the top, a securing screw for said burner body arranged transversely therethrough, downwardly-projeeting burners arranged on said burner body, and a mixing tube projecting into the burner body to deliver at a central point therein.

7. In a self-heating sad iron, the combination of a chambered body, the inner side of the bottom being longitudinally corrugated, a top, a tubular burner body arranged longitudinally of thetop, tube like burners arranged on said body in downwardly diverging pairs with their ends adjacent to the corrugated bottom. I

8. In a self-heating sad iron, the combination with a chambered body having side walls provided with air openings adjacent to the bottom, the inner side of the bottom of the body being longitudinally corrugated,

a top, a burner body arranged within the top and. carried thereby, and a plurality of tubular burners arranged on said burner body to project downwardly therefrom with their tips adjacent to the corrugations to direct the jets issuing therefrom transversely of the corrugations of the bottom.

9. In a self-heating sad iron, the combination with a chambered body having side walls provided with air openings, adjacent to the bottom, atop, a burner body arranged within the top and carried thereby, and a plurality of tubular burners arranged on said burner body to project downwardly therefrom with their tips adjacent to the bottom.

10. In a self-heating sad iron, the combination with a chambered body, the inner side of the bottom of the body being longitudinally corrugated, a burner body, and a plurality of elongated tubular burners arranged on said burner body to project downwardly therefrom with their tips adjacent to the corrugations.

11. In a self-heating sad iron, the combination with a chambered body having side walls provided with air openings adjacent to the bottom, a chambered top, a tubular burner body arranged longitudinally of the top and carried thereby, and a plurality of elongated tubular burners arranged on said burner body to project downwardly therefrom with their tips adjacent to the bottom of the body to direct the jets issuing therefrom against the bottom.

12. In a self-heating sad iron, the combination with a chambered body having side walls provided with air openings adjacent to the bottom, a top, there being air openings between the body and top, a burner body arranged within the top, and a plurality of tubular burners arranged on said body to project downwardly therefrom with their tips adjacent to the bottom.

In witness whereof, I have hereunto set my hand and seal in the presence of two witnesses.

GEORGE A. HUMPHREY. [1,. s.] Witnesses:

J. R. CoNRoY, E. D. JUNIOR.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington. D. C. 

